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Image processing device and image processing program

a technology of image processing and image processing program, which is applied in the field of image processing device, image processing method, image processing program, etc., can solve problems such as unsuitable inclination correction

Active Publication Date: 2010-08-05
NIKON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a method for correcting the inclination of an image. It involves evaluating multiple line segments with different inclinations and selecting the best one based on the evaluation results. This method ensures that the image is rotated appropriately. The technical effect of this invention is to provide a more accurate and efficient way to correct the inclination of an image.

Problems solved by technology

But if the “reference line” is only chosen by length, then sometimes it may be the case that it is not suitable for inclination correction.

Method used

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  • Image processing device and image processing program
  • Image processing device and image processing program
  • Image processing device and image processing program

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embodiment # 1

Variant Embodiment #1

[0065]It would also be acceptable to arrange to provide an inclination detection sensor to the camera main body, and to reflect the angle of inclination and / or the angle of elevation of the camera main body in the weighting processing described above by using the detection signal from that inclination detection sensor.

embodiment # 2

Variant Embodiment #2

[0066]It would also be acceptable, in the step S23 described above, for operation signals that select a plurality of “reference lines” to be received from the operation members 109. In this case, a new “reference line” may be obtained by selecting a “reference line” that has an inclination intermediate between those of the plurality of “reference lines” that are selected, or by creating a “reference line” having an inclination that is obtained as a weighted average of the plurality of selected “reference lines”, while taking their weights into consideration.

embodiment # 3

Variant Embodiment #3

[0067]In the embodiments described above, different types of weighting were performed in each of the steps S13 through S16, and a priority order was assigned to the “reference lines” by giving consideration to the results of these weighting processes. Instead of this, it would also be acceptable to arrange, in the processing of the steps S13 through S16, to receive a command from the user to accord different weightings to any one, or any two, or any three of these processes, only, and then to assign a priority order to the “reference lines” according to the results of these weighting processes only. For example if, by operating the operation members, the user has selected only processing on the basis of the inclination distribution of the “reference lines” and processing on the basis of the focusing area, then it would be acceptable to arrange for the MPU 106 to omit the processing of the step S13 and the processing of the step S14.

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Abstract

An image processing device that rotates an image according to the inclination of a line segment included in the image, includes an evaluation unit 106 that evaluates a plurality of line segments whose inclinations are different, on the basis of each of a plurality of different decision standards, and a selection unit 106 that selects, on the basis of the results of the plurality of evaluations, from among the plurality of line segments, a line segment on the basis of which the image is to be rotated

Description

INCORPORATION BY REFERENCE[0001]The disclosures of the following priority applications are herein incorporated by reference: Japanese Patent Applications Nos. 2009-019264, filed Jan. 30, 2009, and 2010-8994, filed Jan. 19, 2010.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an image processing device, an image processing method, and an image processing program.[0004]2. Description of the Related Art[0005]A technique is per se known for extracting a line segment (a “reference line”) from an image, and correcting inclination of the image by rotating the image on the basis of the line segment (refer to Japanese Laid-Open Patent Publication 2007-295210).SUMMARY OF THE INVENTION[0006]In the prior art, a “reference line” of a predetermined length has been extracted. But if the “reference line” is only chosen by length, then sometimes it may be the case that it is not suitable for inclination correction.[0007]The present invention is applie...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N5/228G06K9/32H04N23/40H04N25/00
CPCH04N5/217H04N5/232G06K9/3208H04N5/2628H04N5/23229G06V10/242H04N23/81H04N23/80
Inventor YAMAGUCHI, TOSHIHIROHASUMI, TOMOHISANAKAYAMA, MAYUMISEKI, NOBUAKI
Owner NIKON CORP
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